Title :
Eddy current shielding and inductive force characteristics of paramagnetic shields in linear synchronous motors
Author :
Jeans, Carl G. ; Cruise, Rupert J. ; Landy, Charles F.
Author_Institution :
Dept. of Electr. Eng., Univ. of the Witwatersrand, Johannesburg, South Africa
Abstract :
A small scale prototype of a linear synchronous motor has been designed, built and tested. Present studies include the investigation of the shielding properties of a paramagnetic material as well as its use as a stabiliser during asynchronous operation. Analysis has shown that a shield made of aluminium reduces eddy currents in the secondary of the linear synchronous motor as well as providing inductive forces during asynchronous operation
Keywords :
aluminium; eddy currents; linear synchronous motors; magnetic shielding; aluminium shield; asynchronous operation; eddy current shielding; eddy currents reduction; inductive force characteristics; inductive forces; linear synchronous motors; paramagnetic material; paramagnetic shields; secondary; shielding properties; stabiliser; Aluminum; Current density; Eddy currents; Equations; Frequency; Magnetic materials; Numerical analysis; Paramagnetic materials; Synchronous motors; Testing;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769179
